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Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China

We explore the relationship between modern pollen spectra and vegetation patterns in the Eastern Tibet, China in order to provide information on the representation of pollen taxa and improve the general knowledge of vertical pollen transport. Forty-two modern pollen samples collected in surface soil...

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Autores principales: Zhang, Yun, Kong, Zhaochen, Yang, Zhenjing, Wang, Li, Duan, Xiaohong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5428771/
https://www.ncbi.nlm.nih.gov/pubmed/28373645
http://dx.doi.org/10.1038/s41598-017-00625-7
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author Zhang, Yun
Kong, Zhaochen
Yang, Zhenjing
Wang, Li
Duan, Xiaohong
author_facet Zhang, Yun
Kong, Zhaochen
Yang, Zhenjing
Wang, Li
Duan, Xiaohong
author_sort Zhang, Yun
collection PubMed
description We explore the relationship between modern pollen spectra and vegetation patterns in the Eastern Tibet, China in order to provide information on the representation of pollen taxa and improve the general knowledge of vertical pollen transport. Forty-two modern pollen samples collected in surface soil along two altitudinal transects allowed conclusions on vertical pollen dispersal from the alpine region of Dingqing County, Changdu district in Tibet. Discriminant analyses and detrended correspondence analysis (DCA) of 24 pollen taxa were used to further discuss the difference of modern pollen spectra in these alpine vegetation zones. The surface pollen assemblage is divided into three pollen zones, such as subalpine shrub meadow, montane coniferous forest and shrub steppe with sparse trees. Altitude and precipitation are two primary factors contributing to changes in surface pollen assemblage from alpine vegetation in the eastern Tibet. Large amounts of spruce pollen at higher elevations above the timberline might be introduced from lower elevations by upslope winds. Therefore, the interpretation of spruce pollen in the fossil record must take into account long distance upward wind transport. Moreover, the destruction of coniferous forest in the study area is well illustrated in the modern pollen rain.
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spelling pubmed-54287712017-05-15 Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China Zhang, Yun Kong, Zhaochen Yang, Zhenjing Wang, Li Duan, Xiaohong Sci Rep Article We explore the relationship between modern pollen spectra and vegetation patterns in the Eastern Tibet, China in order to provide information on the representation of pollen taxa and improve the general knowledge of vertical pollen transport. Forty-two modern pollen samples collected in surface soil along two altitudinal transects allowed conclusions on vertical pollen dispersal from the alpine region of Dingqing County, Changdu district in Tibet. Discriminant analyses and detrended correspondence analysis (DCA) of 24 pollen taxa were used to further discuss the difference of modern pollen spectra in these alpine vegetation zones. The surface pollen assemblage is divided into three pollen zones, such as subalpine shrub meadow, montane coniferous forest and shrub steppe with sparse trees. Altitude and precipitation are two primary factors contributing to changes in surface pollen assemblage from alpine vegetation in the eastern Tibet. Large amounts of spruce pollen at higher elevations above the timberline might be introduced from lower elevations by upslope winds. Therefore, the interpretation of spruce pollen in the fossil record must take into account long distance upward wind transport. Moreover, the destruction of coniferous forest in the study area is well illustrated in the modern pollen rain. Nature Publishing Group UK 2017-04-03 /pmc/articles/PMC5428771/ /pubmed/28373645 http://dx.doi.org/10.1038/s41598-017-00625-7 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Zhang, Yun
Kong, Zhaochen
Yang, Zhenjing
Wang, Li
Duan, Xiaohong
Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
title Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
title_full Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
title_fullStr Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
title_full_unstemmed Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
title_short Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
title_sort surface pollen distribution from alpine vegetation in eastern tibet, china
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5428771/
https://www.ncbi.nlm.nih.gov/pubmed/28373645
http://dx.doi.org/10.1038/s41598-017-00625-7
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